Convert dojo.Color to RGBA
<html> <head> <script type="text/javascript"> var djConfig = { baseScriptUri : "js/dojo/" }; </script> <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script> </head> <body> <script language="JavaScript" type="text/javascript"> var c = new dojo.Color("red"); document.write(c.toRgba()); </script> </body> </html>